Hospital bed



A. M. KIRBY. HOSPITAL BED. APPLICATION FILED NOV. l2, l92l.

PatentdSept. 12, 1922..

v 2 $HEETS-SHEET 1.

A.M. KIBBY.

HOSPITAL BED.

APPLICATION men NOV. 12. 1921. v 1 ,429,080, PatentedSept. 12, 1922.

I 2 SHEETS-SBEET 2.

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l citizen of the United States, and lresident of 1 StpyLoiiis; Missonri have' inventedycertain new and useful-Improvements indiospital Be lsyofiwhichf heiollowingis aspecifica wtionw I w p; i l i This invention relatestoimprovements in tachment by whichlthebed: maybe r'ra-ised or "placed upon a pedal that portion oilithe bed olined to airy desii able degree.

a The inventionconsistspreferably oftwo X hollow standards whichtthe legs or bed posts are inserted 1 and? means: for telescopif cauy elevating the bed portiomand ameans a for locking the same wheninits properad: justed or inclinedposition. l

j Figure 1, is a side elevation ot in my invention attached theretogf portion of the applied thereto,

same as applied tothe bed. a a Fig. 4, is a detail perspectivevlewof one L of the bed legsshowing thehoisting connec invention, showing the a frictional locking means by which the bed; is additionally locked when in its adjusted position. Fig.f6,is a detail sectional viewof the pedal mechanism; made use of in connection sheave supporting meinbers which is in usein connection with my invention.

Referringto the drawings in detail 9, in-

the usual constructionpreferably made. of iron tubing and toithis strl cturejof bed is j attachedmyinventionwhichfconsistsof two tubulanstandards110, the bottom; ends being provided with a rounded oontacting surface 11 or; on the same" may be attached casters of UNITEDSTATES?PMEW providedy with a cylindrical" through whichthe bar 13 is placed and on the; loweiwedge 1 of this cylindrical structure is formedears 16 in which is usuallysmountis a detail perspectiv View e b fh l g y invention,

Fig. E is a combination jfront and sec tional view of ytmventlon showing the Fig. 5, is a detail sectional view of the upper portion of one of the standards of my a sectional view of the dicates an ordinary hospital bed which is of cross-bars l2 ahd 13, one near the topand one near the bottom. Approximately centrally located and connected to "each i of a the Sa aam-6f; tubu la'r standards are "connected togethergbya rods 12and l 3is aratchetbarsl. This bar I teeth Theiupper portion of thebar is edjsheavewheels 1T. Thebottoni; end is also made in the term of cylinder through is preferably constructed rectangular in form M e e and 'its 1 one surface provided with ratchet l a hospitalbed:and dias fforlitsflobject angat- 1 10 i a 3 inclined at any angle to suit the convenience ofthefpatient: The meansibeifngfso arranged: asjato bewattached to the vhead+p1ece or toot q bOMd of the bed and bv means of theliooti towhich the device;is flattached can be in" a structure a which isplaced the rod 12. This ratchet 1s firmly held. in its set position either by rivets, set-screwsorthe likesas found desira p a able in themechanicalstructure. L i

Onthe ratchet bar is placed a rectangular frame 18. This frame is constructed loose enough to allow the same to move up and ye i down on the bar, and is provided with a bed shoW- two projectingears 19 between which is piv- 1 otallymounted a ratchet pawl 20. Its tooth 121 is arranged to contact with the ratchet teeth 15 of the bar, and its front end is provided witha lever 22 with which the toe of the operators shoe may be brought in con \tactlor manipulating the pawl and bringing the tooth 21 out of contact with the teeth 15.

This is for the purposeol permitting the frame 18 to be raised in order that the bed which the device supports may be lowered. The. ears lt) oi": the frame are arranged to support a pedal 23. This pedal is for the purpose of permitting the operator-to place his foot on the same-and press the frame downwardly and during this downward action the pawl 20 will normally contact with the teeth the same being held intactby the spring 24. i

This frame is attached to one end of the cables 25 and 26. These cables operate over the sheaves 17 and are then placed towards the sides and over the sheave wheels y27 which are supported inthe castings 28 located on the a ends of the bars 13, and in close proximity to the tubular standardslO. The opposite a v and freeends ofthecables are attached to thebed posts29 which are telescopically lo cated in the standards 10 and said cables are so attached to the posts by meansof the con-v nectio1r30. See Fig. 4.

e The upper ends of the tubular standards 10 are provided with ears 31 between which is pivotally mounted a friction eccentric le- I the bed posts when the samehave been ele-, vated to the desired degree and will'prevent ver 32. See Fig. 5. Theseeccentric levers are used to exert frictional contact against the, bed'i'rom lowering itself when acci dental contact is brought against the pedalmechanism by which the bed is elevated.

The posts 10 are provided with elongated slots 33 which permit proper operation of the/cables during'the elevation 0r lowering ofthebed. i

The deviceis simple in construction yet can be attached to any hospital bed by first removingthe casters from the foot, of the bed post and then attaching the free end of ,nected tothe ratchet mechanism and to said:

bed and-by which the bed is elevated when pressure. israpplied upon the ratchet mecha- 1 nismyand a clamping meanson the frame for binding the bedlpostsfwhen in set po'si I the cable thereto. I

Having fully described my invention fwhat. 'Iclaim is: i r v I 1. A hospitalbed comprising an independ-' ent frame consisting of pair of hollow standards joined together, a rack bar forming a part of and carried by the frame," a foot operatedratchet mechanism operating on the rack bar, a resilient bed hoisting mechanism carried by the frame and controlled by the ratchet mechanism in combination with a bed to which the hoisting nfiiechanism is attached,'substantially as specied; I H v l '2. A device of the character jdescribed of the bed'is telescopically-mounted, a

ratchet bar formingi'a part "of the frame, a sliding ratchet mounted on the ratchet, bar and cablesflea'ding from the sliding ratchet to the postssof the bed'for elevating the b'ed'f when pressuretis applied. to f the -sliding I g A device of :the i character described comprising a frame adapted to be attached ratchet, substantially as. specified:

to the. end of hospital bed.,"-a ratchet mechanismfaibedelevating mechanism con; g

tion, substantially as'vspec'ified.

' comprising a frame in combination with a hospital bed to Which said frame is attached, apair ofhollow standards in which the post Intestimony whereof, I have signed-my name to this specification; in presence of two subscribing witnessesv' Witnesses :5 f v p J M- MANNE, ALFREDYAmEICKS. v

A B SEM- i B 

